If it was about other people and things, the Duke and Duchess certainly would not let themselves get taken advantage of
Once they show the slightest bit of weakness, their enemies and people that are deeply envious of them would surely pounce at them
As such, they can be kind at times but when needed, they have to show decisiveness and cruelty
However, the matter at hand currently is their sun's engagement. Cain insisted on wanting to marry the 1st Imperial Moon
Since it was His Highness that their child wants to marry and spend his whole life with, Cain's parents would make sure that he gets what he wants
As such, Victor and Qain didn't try to make a fuss. Azael is just here to obtain benefits from them then so be it
As long as the engagement would proceed, they can afford to lose some money. Anyway, they are the owner of an entire Duchy, they have never encountered any monetary problems